I'm trying this again.   If this works,  I want to save the material settings so I don't have to keep redoing it if I want to use the tiara again.

What's the difference between the "single material" and "material collection"?  I'm assuming I pick the single material, but  under what circumstances would I want to pick the "material collection"?

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi